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← TechnologyWhich outcome occurs when rapid injector fouling blocks a common-rail diesel, limiting fuel?
A)Increased exhaust gas recirculation rates
B)Decreased peak cylinder firing pressures✓
C)Elevated turbine inlet gas temperatures
D)Higher fuel mass in pre-combustion
💡 Explanation
Reduced fuel causes lower pressures because injector fouling directly restricts fuel flow during compression. This flow restriction is a mechanical obstruction rather than an electronic fault; therefore, firing pressures drop, rather than increase, and other compensations are unachieved.
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